fix: Fix mistake in StatePropertyMetadataConstraint type

[Gudahtt]

Explanation

In the next export of base-controller, the type StatePropertyMetadataConstraint mistakenly referenced the old metadata property name anonymous rather than includeInDebugSnapshot. The type has been updated to use the correct name.

References

Fixes a mistake introduced in #6593

Checklist

• I've updated the test suite for new or updated code as appropriate
• I've updated documentation (JSDoc, Markdown, etc.) for new or updated code as appropriate
• I've communicated my changes to consumers by updating changelogs for packages I've changed, highlighting breaking changes as necessary
• I've prepared draft pull requests for clients and consumer packages to resolve any breaking changes

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Note

Corrects StatePropertyMetadataConstraint in the experimental next export to use includeInDebugSnapshot instead of anonymous, and updates the changelog.

• Type fix (experimental next)
  • Update StatePropertyMetadataConstraint in packages/base-controller/src/next/BaseController.ts to use includeInDebugSnapshot (replacing anonymous).
• Changelog
  • Add Unreleased entry documenting the fix in packages/base-controller/CHANGELOG.md.

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